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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the hub interacts with?
There are several data access methods used to transmit data. Which of the answers below can be described as a method that is suitable for larger networks?
There are a collection of standards that defines the access control for wireless Ethernet. Which one of the answers below is the standard for initiating a WLAN?
Which of the answers below best represents the most common way to indicate the range of frequencies that can be used for a transmission system with little or no attenuation?
Providing power to remote sites in a SCADA system has several difficulties associated with it. Which of the answers below would be best defined as one that is power generating 24 hours of the day under the right conditions?
Software for programming or configuration is an integral part of any HMI. Which of the interfaces below can be best described as having the operators access the various HMI subsystems to interact with a process control system?
Alarm management is based upon the process conditions model. Which of the conditions in that model could be described as the conditions resulting in a cataclysmic loss or event?
Over the lifetime of a HMI, there will be changes to it's software form the supplier. Which of the terms below would best describe the red number in the picture below?
Balanced and unbalanced signal systems have several differences. Which of the answers below best represents one of those differences?
Open communication protocols have several disadvantages. Which of the answers provided below represents one that is not a disadvantage?
There are numerous function block modes which are permitted. Which of the modes below is best described as the mode the function block is currently in?
Which of the antenna below would be best for point-to-point communication?
Which of the terms below can be best described as a device with an assigned tag name?
There are several common components of signal converters. Which one is best described as reduction of overall error introduced by the input and/or output signals?
Due to the uncomplicated nature of the Modbus frame structure, it requires a simple access method. Which of the access methods below is a method that this frame structure supports?
In the protocol specifications of Modbus, there are standard 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the coils register addresses?
Which component of a wired Ethernet network has provisions for interfacing with the OSI model physical and data link layer?
In a typical GUI, values take one of four generic indicators. Which of the indicators below would best used where discrete data needs to be provided, but a simple colour change will suffice?
A DCS collects a lot of data during the course of operating. Which of the terms below would best describe the database that contains the value of all the parameters and tags, as well as all the programming and the DCS configuration?
Which of the error detection methods below best relates to an "effectiveness of 90%"?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that can have 8, 16, or 32 output points powered by 24Vdc or 120/230 Vac?
There are two characteristics that are defined by the classifications of the IPv4 networks. Which of the answers below contains both of those characteristics?
Over the lifetime of a HMI, there will be changes to it's software form the supplier. Which of the terms below would best describe the red number in the picture below?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "F"?
With IPv4, you would use static address assignment over dynamic for this primary reason?